[PATCH v8 15/22] perf arm-spe: Add new function arm_spe_pkt_desc_event()

From: Leo Yan
Date: Wed Nov 11 2020 - 02:21:19 EST


This patch moves out the event packet parsing from arm_spe_pkt_desc()
to the new function arm_spe_pkt_desc_event().

Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx>
Reviewed-by: Andre Przywara <andre.przywara@xxxxxxx>
---
.../arm-spe-decoder/arm-spe-pkt-decoder.c | 63 +++++++++++--------
1 file changed, 37 insertions(+), 26 deletions(-)

diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
index 5178bbe64422..af87d3c8cb50 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
@@ -287,6 +287,42 @@ static int arm_spe_pkt_snprintf(int *err, char **buf_p, size_t *blen,
return ret;
}

+static int arm_spe_pkt_desc_event(const struct arm_spe_pkt *packet,
+ char *buf, size_t buf_len)
+{
+ u64 payload = packet->payload;
+ int err = 0;
+
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, "EV");
+
+ if (payload & 0x1)
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, " EXCEPTION-GEN");
+ if (payload & 0x2)
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, " RETIRED");
+ if (payload & 0x4)
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, " L1D-ACCESS");
+ if (payload & 0x8)
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, " L1D-REFILL");
+ if (payload & 0x10)
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, " TLB-ACCESS");
+ if (payload & 0x20)
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, " TLB-REFILL");
+ if (payload & 0x40)
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, " NOT-TAKEN");
+ if (payload & 0x80)
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, " MISPRED");
+ if (packet->index > 1) {
+ if (payload & 0x100)
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, " LLC-ACCESS");
+ if (payload & 0x200)
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, " LLC-REFILL");
+ if (payload & 0x400)
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, " REMOTE-ACCESS");
+ }
+
+ return err;
+}
+
static int arm_spe_pkt_desc_addr(const struct arm_spe_pkt *packet,
char *buf, size_t buf_len)
{
@@ -367,32 +403,7 @@ int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf,
arm_spe_pkt_snprintf(&err, &buf, &blen, "%s", name);
break;
case ARM_SPE_EVENTS:
- arm_spe_pkt_snprintf(&err, &buf, &blen, "EV");
-
- if (payload & 0x1)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " EXCEPTION-GEN");
- if (payload & 0x2)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " RETIRED");
- if (payload & 0x4)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " L1D-ACCESS");
- if (payload & 0x8)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " L1D-REFILL");
- if (payload & 0x10)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " TLB-ACCESS");
- if (payload & 0x20)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " TLB-REFILL");
- if (payload & 0x40)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " NOT-TAKEN");
- if (payload & 0x80)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " MISPRED");
- if (idx > 1) {
- if (payload & 0x100)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " LLC-ACCESS");
- if (payload & 0x200)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " LLC-REFILL");
- if (payload & 0x400)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " REMOTE-ACCESS");
- }
+ err = arm_spe_pkt_desc_event(packet, buf, buf_len);
break;
case ARM_SPE_OP_TYPE:
switch (idx) {
--
2.17.1